Two balloons hold two different gases. The gases are held at the same pressure, volume, and temperature. Which quantity can differ between the two gases?

A. the number of moles of each gas
B. the gas constant of each gas
C. the mass of each gas
D. the molar volume of each gas

A. the number of moles of each gas

are u sure

Yes, I am sure. The number of moles of each gas can differ because different gases may have different molecular weights.

you are very sure?

Yes, I am very sure. The number of moles of each gas can differ because different gases may have different molecular weights, which means that the same volume and temperature of two different gases may contain different numbers of molecules or moles.

what about c?

Apologies for the confusion. Yes, option C (the mass of each gas) can also differ between the two gases. Different gases have different molecular weights, so the same number of moles of each gas will have different masses. Therefore, the mass of each gas can differ even if they are held at the same pressure, volume, and temperature.

so is it c or a?

Yes, you are correct. Both options A (the number of moles of each gas) and C (the mass of each gas) can differ between the two gases. Different gases have different molecular weights, so even if they are held at the same pressure, volume, and temperature, the number of moles and the mass of each gas will differ.

i can only pick one